Article ID: 233264 - View products that this article applies to.
This article was previously published under Q233264
For information about the differences between Microsoft Outlook Express and Microsoft Outlook e-mail clients, click the following article number to view the article in the Microsoft Knowledge Base:
257824 OL2000: Differences Between Outlook and Outlook Express
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When you start Outlook Express or attempt to send an e-mail message, you may receive one of the following error messages:
  • MSIMN caused an invalid page fault in module Msoe.dll
    MSIMN caused an invalid page fault in module "unknown"
    MSIMN caused an invalid page fault in module Directdb.dll
    Msimn caused an exception C0000006h in module Directdb.dll
    Outlook Express: The message could not be sent. There is not enough Disk space.
    Unknown error has occurred. Protocol: SMTP Port: 0 Secure: No [SSL] Error: 0x800c0131


This behavior can occur if the Folders.dbx file is missing, damaged, or using the read-only attribute.


Rename the Folders.dbx file:
  1. Click Start, point to Find, and then click Files or Folders.
  2. In the Named box, type folders.dbx.
  3. In the Look In box, click your primary hard disk (usually drive C), and then click Find Now.
  4. Right-click the Folders.dbx file, and then click Rename.
  5. Type folders.old, and then click OK.
  6. Start Outlook Express. This creates a new Folders.dbx file automatically.


For more information on how to troubleshoot the errors listed at the beginning of this article, click the following article numbers to view the articles in the Microsoft Knowledge Base:
238656 OLEXP: Err Msg: "This program has performed an illegal operation and will be shut down"
253795 OLEXP: Error 0x800C013B When you attempt to send a message in Outlook Express 5


Article ID: 233264 - Last Review: May 7, 2007 - Revision: 3.3
  • Microsoft Outlook Express 6.0
  • Microsoft Outlook Express 5.0
  • Microsoft Outlook Express 5.0
kberrmsg kbprb KB233264

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